Cut-out.



E. WILSON.A CUT-GUT.

APPLICATION FILED MARI 3, ISN.

Patented Dec; SI, 1918.

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QWIIIIg'S: A v Q? ATTORNEY CRLES E. VELSDI, OF TVVILKENSBURG, PENNSYLVANIA, ASSIGNE T0 TNESTING- HOUSE ELECTRIC AIN@ MANUFACTURING CGfPNY, A CORPORATN GF PENN- CUT-CUT.

Application filed March 3, 191e.

To all whom it may concern:

Be it lmovvn that l, @nantais E. lTILsoN, a citizen of the United States, and a resident of l/Vilkinsburg, in the county o' Allegheny and State oil lleimsylvania, have invented a new and useful improvement in Cut-Guts, of which the following is a specification.

My' invention relates to cut-outs such as are employed in connection with electrical circuits, and it has particular reference to mechanisms for controlling the electrical connections ci dynamo-electric machines.

My invention has or its object to provide a device of the character indicated above, that is simple and economical in construction and eiiective in operation to control the cir cuits of an electrical system.

A second object of my invention is to provide a suitable construction whereby the cutout may be assembled with the parts ci a dy name-electric machine and form a unitary structure therewith.

In the operation of electrical systems, it has been the usual practice, to provide circuit-controlling mechanisms that are separate and apart, both in structure and in loca tion, from. the dynamo-electric machines which they control. ln some cases, thecutout has been attached to the frame of a dynamo-electric machine, but the structures of the respective mechanisms have been sepa;

` rate and distinct.

I have provided a mechanism in which a cut-out and a dynamo-electric machine have certain structural parts in common, the re-` sulting mechanism having a neat and compact arrangement that is economical in con struction, since the number of parts and the number of manufacturing operations are reduced. The combined device may be assembled, and the electrical connections permanently made, at the place of manufacture.

My invention may be employed with particular advantage in connection with the electrical systems of automobiles which embody generators operating at variable speeds to charge storage batteries.

lnl the accompanying drawings, Figure l is a top View, in plan, of a cut-out constructed in accordance with my invention. Fig. 2 is a side View, partially in elevation and partially in section, of the mechanism'of Fig. i. Fig. 3 is a side view, partially in elevation and partially in section, of a portion of a S; ecication of Letters Patent.

arial Ho. 322,190.

dynamo-electric machine, with my invention 'applied thereto. Fig. e is diagrammatic vievv of circuits and apparatusembodying my invention.

Referring particularly to Figs. l and 2, a

cnt-out l is mounted upon the end casing il r`w`v`'ti/veen the plate memer 3 and the casing 2.

A har l0 oi' non-magnetic material, is iiXed te the core members fl and 5 by screws l1 which constitute pole pieces for the core members.' A leaf spring 12, preferably of phosphor bronze or other suitable material, is attached, at one end, to the folded end portion i3 of the bar i0. The spring l2 is provided, at an intermediate portion, with an armature member 1.4L of suitable magnetic material. rihe outward movement of the spring l2 is limited by the opposite end portion of the bar i0 which is bent to form a hook i5. A contact member i6, which is mounted ilpon, and connected to, the spring l2, coacts With a contact member i7 that is mounted upon, and insulated from, the bar l0. The coils 6 and 7 are connected to the contact member 17. A i' it may be desirable, in some cases, to construct the'end casing 2 of magnetic material. `When such-material is employed, the core members of the cut-out may be. cast integral with the casing. f

Referring now to Fig. 3, a dynamo-electric machine 18, only a `portion of which is shown, comprises a series field magnet Winding i9, a shunt field ma gnet winding 20 and a frame member 2l. An end casing 22 of suitable magnetic material, such. 'for enample, as cast iron, is iiXed to the trame member 2l by suitable screws 23, one of which is shown. The casing 22 is provided, at an intermediatepoint, with a horizontally extending portion 24. upon which are two vertically extending projections that are integral withthe casing." Only one of the projections 25 is shown, but they are substantially similar in form and size to the core nfiembers iand 5 oi Figs. 1 and 2. The projections 25 constitute the core members of a cutout 26 which diders in no material respect from the cutout above described in connection with Figs. ll and 2.

n either` form of construction, the cutout is inclosed by a detachable cover 27 which is held in position by screws or bolts 28 thereby forming a closed 'compartment on the outside ot the'end wall or plate 22,

whereby the cut-out is entirely inclosed and separa-ted.. from the ield magnet and armature compartment of the dynamo-eiectric machine. This construction provides a simple means for protecting the cut-out or circuit-controlling mechanism and affords corr venient access :t'or the purposes of inspection, adjustment and repair.

Referring now to Fig. 4e, the coils 6 and? are respectively in series andin shuntV with the armature 29 of the dynamo-electric ma chine 18, the coil 7 being in series with thel shunt held winding 20. These connections are made. preferably, within the `dynamo structure and form a part ot the interior circuits of the dynamo. A storage battery 30 is connected directly to one terminal of the dynamo-electric machine, the other tec niinal of the battery being grounded, as shown. rihe Contact member 16 is grounded through the spring 12, the bar 10, the core members and the dynamo structure.

it may be assumed that the generator 1Q is operatively connected to the engine ot' an automobile A(not shown). wWhen the engine starts under its own power, the generator is driven at an increased speed, and

current flows from one 'terminal of the generator through the series field winding 19.

series coil 6, shunt coil 7 and shunt field 'winding 20 to the other terminalof the generator. -s the generator speed increases, a 'predetermined voltage is reached at which the coils G and 7 are suiiciently energized to draw the armature member 14 downwardly' current in the charging circuit will be. re#

versed. The series coil G, which normally assists the sh et coil @7, new opposes the latter and as a result, the spring 12 draws the armature member 1l upwardly. .The

f it is understood that such modifications mav be made, without departing' from the spirit ofnny invcnti'orn'as fall within the scope of the appended claims.

i claim as my invention:

1. in' a dynamo-electric machine, the combination with a eld-magnet frame. of a member constituting an end wall ot'said frame, an integralprojection on the outer side ot said membranaCircuit-controlling dei'ice mounted on said projection, and a detachable cover cooperating with the outer side of said member to form a compartment therewith whereby said device is inclosed and separated from the field-magnet and armature compartment of the dynamo-electric machine.'

2. In a dynamo-electric machine, the combination with a ieldnnagnet frame, of a member constituting an end Wall of said frame, a core formed integral with said member on the outer side thereof. a coil Asurrounding said core, circuit controlling means associated with said core and coil, and a detachable cover coperating with the outer side of said member to forni a compartment therewith to entirely inclosev saidcore, coil and controllin means and separate the same from the fiel -magnet and armature compartment of the dynamo-electric machine.

3. ln a dynamo-electric machine, the combination with an Aend casing having a pair of projecting portions integral therewith, coils on said projections to, form an' electromagnet, and an armature member controlled by said clectromagnet.

4. In a dynamo-electric machine, the combination with an armature winding and a field magnet winding, of a casing member having projecting portions integral there with, a'coil upon one of said projections for connection in series with said, armature Winding, and a coil 'upon another of said projections for connection in series with said Field magnet winding. y v

cut-out comprising an elcctroma et having a core, a stationary bar secure(v to said core, a leatI spring having one ,end thereof secured to said bar, and coacting contact' members and an armature supported by said bar and spring, said armature being subject to attraction by said core and adapted to actuate one ci said contact members.

6. lin a dynamo-electric machine, the comiso binetion `With an'end casing havinga horizontally extending portion, of a pair of Vel'- ticslly extending core members that are integml with said portion, and coils surroundino' seid core members.

l?. n a dynamo-electric machine, the combination with en end casingheving a horizontally extending portion, of a pair of core members that are integral therewith, coils surrounding said core members, coperating,l Contact members associated with seid cores and coils, and e detachable cover for inclosing seid coils and contact members.

8. in a out ont, the combination with a casingr membei` having a pair of intcgial projcctimqi portions, and coils surrounding the pzfojectons, cured to seid projections, a movable inembensecmed t0 seid stationary member, and

of a stationery membeifI secoacting contact members carried'bysaid members. 4 f

9. In a cut-out, the combination with a, pair of cones, of series and shunt coils surrounding said cores, respectively, a bar secured to seid cores, and co-acting contact members and an armature mounted on seid bar, said armature being bar adjacent to shunt coll and subject to the attraction of both of said cores and adapted to operate one of said contact members.

In testimony whereof, I have hereunto subscribed my namcthis 27th dayiof Feb. 191e.

CHARLES E. WILSON. Witnesses:

B. B. EINES, M, C. MERZ.

connected to said 

